Lately, I've frequently gotten errors on the final step of the upload wizard (the one where pages should say "Published" after submitting titles and descriptions). Usually this is "Internal error: Could not determine if the copy succeeded". The publication step actually succeeds, however.

In my latest batch, the following files were listed with that error:
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_01.jpg
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_04.jpg
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_05.jpg
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_06.jpg
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_07.jpg
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_08.jpg
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_10.jpg

Also, "An unknown error occurred" for:
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_09.jpg

In the same batch, these files reported no errors:
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_02.jpg
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_03.jpg
https://commons.wikimedia.org/wiki/File:Nora_the_shaggy_dog_11.jpg

Version: master
Severity: normal